Home / 763,724.29-1,145,733.96-290,372.85

Finding the Fourth Proportional to 763,724.29, 1,145,733.96 and 290,372.85

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Solution

The fourth proportional to 763,724.29, 1,145,733.96 and 290,372.85 is: 435,615.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,724.29 : 1,145,733.96 = 290,372.85 : x
  2. Step 2: Convert to fraction form
    763,724.29/1,145,733.96 = 290,372.85/x
  3. Step 3: Cross multiply
    763,724.29x = 1,145,733.96 × 290,372.85
  4. Step 4: Simplify right side
    763,724.29x = 332,690,034,237.79
  5. Step 5: Solve for x
    x = 332,690,034,237.79/763,724.29
  6. Step 6: Final answer
    x = 435,615.36

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.